Average annual temperature is 10.7 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -23.9 °C
Number of sunny days: 208 days
Number of rainy days: 125 days
Number of snow days: 32 days
Look at detailed online map of Ŏsan
* Weather data for Ŏsan North Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 8.1 | 13.3 | 19.0 | 22.8 | 24.9 | 30.9 | 32.5 | 35.0 | 28.3 | 23.3 | 19.2 | 10.1 |
| Average daytime temperature (°C) | -0.3 | 3.5 | 9.5 | 14.0 | 20.3 | 24.4 | 27.2 | 26.6 | 23.8 | 18.6 | 8.6 | 0.1 |
| Average temperature (°C) | -4.2 | -0.6 | 4.8 | 9.7 | 16.2 | 20.5 | 24.1 | 23.8 | 20.1 | 13.4 | 4.2 | -4.2 |
| Average night temperature (°C) | -7.9 | -4.0 | 0.5 | 5.4 | 11.8 | 16.8 | 21.1 | 21.7 | 16.8 | 8.9 | 0.7 | -7.9 |
| Absolute minimum temperature (°C) | -23.9 | -12.0 | -8.3 | 0.5 | 6.4 | 12.0 | 17.7 | 18.2 | 12.0 | 3.3 | -8.2 | -18.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.6 | 7.8 | 9.0 | 8.7 | 10.9 | 10.6 | 10.1 | 7.6 | 9.3 | 9.6 | 6.9 | 5.7 |
| Precipitation (mm) | 19 | 18 | 25 | 57 | 46 | 126 | 120 | 367 | 44 | 14 | 123 | 45 |
| Sunny days | 19 | 16 | 23 | 17 | 20 | 13 | 17 | 9 | 20 | 22 | 14 | 18 |
| Rainy days | 3 | 1 | 7 | 13 | 11 | 17 | 14 | 22 | 10 | 9 | 14 | 4 |
| Snow days | 9 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 9 |
The best time to visit Ŏsan during the most sunny months:
The largest precipitation sum in Ŏsan is at